Home / 80,926.18-121,389.28-34,179.46

Finding the Fourth Proportional to 80,926.18, 121,389.28 and 34,179.46

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Solution

The fourth proportional to 80,926.18, 121,389.28 and 34,179.46 is: 51,269.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,926.18 : 121,389.28 = 34,179.46 : x
  2. Step 2: Convert to fraction form
    80,926.18/121,389.28 = 34,179.46/x
  3. Step 3: Cross multiply
    80,926.18x = 121,389.28 × 34,179.46
  4. Step 4: Simplify right side
    80,926.18x = 4,149,019,651.27
  5. Step 5: Solve for x
    x = 4,149,019,651.27/80,926.18
  6. Step 6: Final answer
    x = 51,269.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.